AMiBA Engineering Telecon Minutes
11, Oct. 2001


Chair: K.Y. Lo
Participants: B. Martin, J. Peterson (USA)
H. Wang, H. C. Lu, Y.J. Hwang, H.M. Jiang, W. Ho, C.H. Lien, C.J. Ma, K. Lin, P. Shaw (Taipei)

Summary

Correlator:

  1. Jeff says there will be one week delay for testing the components at LA. He will follow up to test the delay section, the new design of mixers next week. Fred asks Jeff to figure out the failure reason of the first design. Jeff says they will do, but need some time.
  2. As a backup plan for the read out system, Warwick will develop a discrete version for prototype.
  3. Jeff is aiming to finish all testing by 15, Nov., and then send the correlator to ATNF for integration. Jeff will be in Antarctic for 3 weeks starting from 1, Dec.


Prototype mount:
Philippe keeps working on the design, and try to reduce the weight and put them in the next analysis. He is aiming to finalize the design when he arrive in Taipei on Oct 21.

Dishes:
Bob is arranging a firm to measure the two small dishes, and meantime he and Jeff Kingsley will cross check the alignment of optical. Fred reminds Bob that such measurement is necessary for quality control, but have to watch out the packaging and shipping afterward. We really need to figure out a way to measure everything at site on the telescope, then we will know what we have.

MMIC:
Huei updates:
Todd Gaier will prepare the LNA documentation for Bob.
Todd Gaier will re-draw the drawing of LNA block, he will help to get the quotation for block fabrication.

Action items

  1. Bob/    Bob will talk to Joyce/TRW today to track down the status of agreement preparation. InP HEMT LNA wafer run. Our aim is to get a better price as TRW offered to UMass, and to keep up with the 1st. wafer run in Dec. Bob will follow up to figure out as well.
  2. Fred/    John Payne offered a joint projects to Fred : 1) NRAO provides AMiBA 20 or more of the 3mm OMTs and in return AMiBA provide NRAO with the necessary test equipment and transfer a graduate engineer from Taiwan to assist in the assembly and testing of all the devices needed for both projects. 2) NRAO produce a photonic LO for AMiBA, AMiBA send a suitable graduate engineer to work with us on such a system. Fred will discuss this issue with Mingtang & Eugene offline.
  3. Bob/    Bob will draft a rental agreement with CSO for Hilo office & lab, and forward it to Paul shortly.
  4. Bob/    We will measure the dishes at site on telescope, Bob will generate a test plan accordingly.
  5. Paul/    Paul will set up a phone meeting for Warwick and Jeff , to figure out all the details and how to proceed with the integration test at ATNF.
  6. Huei/    Huei will modify the design of SHM block according the comments of Henry Kanoniuk